Langmuir-Blodgett(LB)technique is the best candidate for the future molecular electronics devices. But, these molecular thin film devices require the bulk properties that are influenced by the molecular orientations. So, this is of current interest in molecular electronic device fabrications of new materias. In this study, quantitative evaluation of molecular orinetation in LB films of(N-docosy quinolinium)- TCNQ (1:2) charge transfer complex was performed by comparing the absorption intensities of the FT-IR transmission and reflection-absorption spectra and the polarized UV/visible absorption spectra. It was found that the polar angle of the dipole moment is about 56~58도씨 and the tilting angle of he alkyl chanin is about 11.1~13도씨. Atomic force mictroscopy and ellipsometry were used to measure roughness and thickness, resplectively. The resulting LB film surface was smooth and flat with a median height difference of 3~4 A as Z-type films at high pressure by LB technique.